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The Official Graphics Card and PC gaming Thread
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AfterDawn Addict
15 product reviews
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20. August 2008 @ 09:00 |
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Yeah, I've seen as high as about 45-50 with the 8800. Notably in "Relic" when you enter the tunnel into the dome.
AMD Phenom II X6 1100T 4GHz(20 x 200) 1.5v 3000NB 2000HT, Corsair Hydro H110 w/ 4 x 140mm 1500RPM fans Push/Pull, Gigabyte GA-990FXA-UD5, 8GB(2 x 4GB) G.Skill RipJaws DDR3-1600 @ 1600MHz CL9 1.55v, Gigabyte GTX760 OC 4GB(1170/1700), Corsair 750HX
Detailed PC Specs: http://my.afterdawn.com/estuansis/blog_entry.cfm/11388 |
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AfterDawn Addict
4 product reviews
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20. August 2008 @ 09:05 |
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A side effect of trying to run the game as well as I can really. If I used a lower resolution and didn't bother trying to optimise the frame rate, I would see higher peaks I'm sure, but why leave it there? :P
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AfterDawn Addict
15 product reviews
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20. August 2008 @ 09:29 |
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Crysis seriously looks like crap out of native res. That's the main reason I'm getting the 4870. I get better visuals at native res on my 17" than I do with 1680 res on my 24".
AMD Phenom II X6 1100T 4GHz(20 x 200) 1.5v 3000NB 2000HT, Corsair Hydro H110 w/ 4 x 140mm 1500RPM fans Push/Pull, Gigabyte GA-990FXA-UD5, 8GB(2 x 4GB) G.Skill RipJaws DDR3-1600 @ 1600MHz CL9 1.55v, Gigabyte GTX760 OC 4GB(1170/1700), Corsair 750HX
Detailed PC Specs: http://my.afterdawn.com/estuansis/blog_entry.cfm/11388
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AfterDawn Addict
4 product reviews
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20. August 2008 @ 09:30 |
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Yeah, you will. Any non-native res game looks yuck IMO, which is why having 2560 is such a bummer... :P
Centred timings help a lot, but you need AA to avoid bigger jaggies.
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AfterDawn Addict
15 product reviews
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20. August 2008 @ 09:34 |
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Well, some games look fine out of native res. CoD4 notably. Though I still use AA when I can.
AMD Phenom II X6 1100T 4GHz(20 x 200) 1.5v 3000NB 2000HT, Corsair Hydro H110 w/ 4 x 140mm 1500RPM fans Push/Pull, Gigabyte GA-990FXA-UD5, 8GB(2 x 4GB) G.Skill RipJaws DDR3-1600 @ 1600MHz CL9 1.55v, Gigabyte GTX760 OC 4GB(1170/1700), Corsair 750HX
Detailed PC Specs: http://my.afterdawn.com/estuansis/blog_entry.cfm/11388
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AfterDawn Addict
4 product reviews
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20. August 2008 @ 10:25 |
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Some are affected worse than others, but in COD4 it's still noticeable.
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harvrdguy
Senior Member
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20. August 2008 @ 15:50 |
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Hey you guys were kinding of jumping on TheftAuto for his 1200 watt PSU. In his opinion he has future-proofed himself.
But I heard some words to the effect that he's using more power than he needs right now, so he's wasting energy. Now, is that true? Do power supplies use a lot of energy, when they are idling?
He's got 1200 watts - that's potential power - and hopefully not just peak power but continuous power. But if he is only pulling 600 watts right now - are any of us saying that he's pulling more energy than that because of the potential power of his unit? I don't think PSUs work that way, do they?
Correct me if I am wrong, but he's got 1200 watts potential power. If his current rig requires 600 watts, then I believe he isn't drawing down any more power from his 115v wall outlet than if he had a 650 watt power supply. Am I right on this - or not?
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AfterDawn Addict
2 product reviews
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20. August 2008 @ 15:55 |
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No, his PSU wont use 1200W at all times. It will only use as much as his PC needs.
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AfterDawn Addict
4 product reviews
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20. August 2008 @ 16:20 |
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That's correct, but needing more than 1KW is pretty damn hard.
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harvrdguy
Senior Member
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21. August 2008 @ 17:07 |
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Originally posted by sam:
That's correct, but needing more than 1KW is pretty damn hard.
It's not so hard if you apply capacitor aging.
Quote:
The cards were tested under load running Half-Life 2 Episode Two at 2560x1600 resolution, using the same settings we did for performance testing.
Look at the power draw on the bottom. In all fairness to TheftAuto - his 1200 watts is beginning to make a lot of sense.
The bottom draw, 752 watts, is two of Sam's current card, the 4870x2. At the resolutions that Sam loves, 2560x1600, I see Sam with two of those cards one day, (Jeez, at the speed Sam upgrades - maybe next week) or something just as powerful.
With 1000 watts headroom, you only have 248 watts left for: hard drives, cpu, fans, etc. Are you guys all comfortable with only that much headroom?
Capacitor aging:
They say that you should apply a 10% to 20% reduction in power output after 1 year, for basic capacitor aging. Let's use 15%. Capacitor aging of 15% takes a 1200 watt PSU down to 1020. It takes a 1000 watt PSU down to 850. It takes your headroom, from 248 down to 98 watts for everything other than the graphics card. How comfortable is everybody now?? :P
Quote:
When running Episode Two, the 4870 X2-based system draws a little more power than a comparable two-way GeForce GTX 260 SLI rig. And with dual 4870 X2s in the system, we do indeed have what is, I believe, a new power-draw wattage record for one of our test rigs. To its credit, our 750W PC Power & Cooling PSU didn't explode during this test. In fact, I tested power consumption last and had no idea how close to the edge the PSU must have been throughout our performance testing.
They ran all this with the PCP&C 750, although they had the 1200 watts available to run the GTX280 SLIx3.
Quote:
Our test systems were powered by PC Power & Cooling Silencer 750W power supply units. The Silencer 750W was a runaway Editor's Choice winner in our epic 11-way power supply roundup, so it seemed like a fitting choice for our test rigs. Because it needs ever more power and a different connector layout, our three-way GeForce GTX 280 SLI system used a PC Power & Cooling Turbo-Cool 1200, instead.
TheftAuto's logic isn't looking too shabby to me. If we take Sam's idea about 1000 watts, and apply capacitor aging, that takes us to 1200 watts, and that makes TheftAuto the new bright kid in town!! :D
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AfterDawn Addict
2 product reviews
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21. August 2008 @ 17:09 |
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Well, I still like being right!
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AfterDawn Addict
4 product reviews
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21. August 2008 @ 17:10 |
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Haha no - I can't fit two 4870X2s, as I can't fit a 4870X2 in my top PCIe slot due to my southbridge cooler. Besides, I'd have crossfired my 4870X2 and normal 4870 if I had the PSU to do so, but I don't...
You raise a very good point about capacitor aging actually, I hadn't considered that.
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Member
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21. August 2008 @ 18:03 |
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Originally posted by harvrdguy:
e words to the effect that he's using more power than he needs right now, so he's wasting energy. Now, is that true? Do power supplies use a lot of energy, when they are idling?
He's got 1200 watts - that's potential power - and hopefully not just peak power but continuous power. But if he is only pulling 600 watts r
Quote:
No, his PSU wont use 1200W at all times. It will only use as much as his PC needs.
Actually, that is where the efficiency comes in. If my pc only needs 600W atm, then thats 87% of the power that my PSU will using. If my PC requires the full 1200W, then it will be at 100% efficiency. It actually states 87%+, so lots of the time its better than 87% efficiency, with 87% being the minimum.
xfx 790i P08 Bios
Q6600 at 3.4GHz
Patriot Viper DDR3 1600MHz 7-7-7-20-1T
GTX280 710 core clock i think
Dual boot system with:Ubuntu 64-bit,Vista Ultimate 64-bit,
Electrical Eng, Gamer, and Heavy PC user.
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AfterDawn Addict
4 product reviews
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21. August 2008 @ 19:48 |
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No, it's 87%, meaning that it typically makes 87, maybe 88. I would be very surprised if it can ever go above 90. The electronics of PSUs just don't work that well for high powered units.
Originally posted by TheftAuto:
If my PC requires the full 1200W, then it will be at 100% efficiency
Efficiency is not how much of its rated output the PSU can produce, it's how much more power it's putting out that it requires from the mains - i.e. a 1000W PSU that's 85% efficient will not max out at 850W, it will max out at 1000W, but use 1176W from the mains to do so. A more efficient PSU will still output the same amount in the PC, but use less mains current to do so, and therefore save electricity. It's worth noting that PSUs are typically 2% or so more efficient in the UK than the US due to the higher voltage.
This message has been edited since posting. Last time this message was edited on 21. August 2008 @ 19:49
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Member
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22. August 2008 @ 10:35 |
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I think we are both a bit wrong on this one
"What is efficiency in a power supply? It is defined as the power loss in AC-to-DC conversion, expressed as a percentage of total AC input power. For example, a power supply that requires 100W AC input to produce 70W DC output has an efficiency of 70%. In this example, 30W is lost as heat within the PSU. A power supply that requires 100W AC input to produce 80W DC output has an efficiency of 80%. 20W is lost as heat. The 10W difference in these examples seems trivial. However, at higher output levels, differences in efficiency becomes quite significant in terms of how much energy is lost as heat"
I still think that 87%+ efficient means that 87%+_ is the minimum, it might be what it's usually at too though, but I think it's the minimum, or else the plus just wouldn't make sense.
xfx 790i P08 Bios
Q6600 at 3.4GHz
Patriot Viper DDR3 1600MHz 7-7-7-20-1T
GTX280 710 core clock i think
Dual boot system with:Ubuntu 64-bit,Vista Ultimate 64-bit,
Electrical Eng, Gamer, and Heavy PC user.
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AfterDawn Addict
4 product reviews
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22. August 2008 @ 11:18 |
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That's what the PSU implies, yes. However, I know of no current PSU that manages more than 87-88% in the 400W+ sector, and that's UK electricity too, US voltage has about a 2% hit on efficiency.
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harvrdguy
Senior Member
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22. August 2008 @ 16:43 |
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Now wait a second. You take our idea for an auto, and you forget which side we put the steering wheel on, you mispronounce the letter Z, you add an extra i to aluminum, you get baseball all wrong, and you're charging us a 2% electricity premium to live in the good old US of A?
Are you limies still taxing us after all these 200 years?
"Throw the tea overboard!" :P
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AfterDawn Addict
4 product reviews
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22. August 2008 @ 16:48 |
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Lol I think you're a bit late to the party for that one Rich!
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AfterDawn Addict
2 product reviews
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22. August 2008 @ 16:58 |
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I don't care about anything else, but don't you talk about Cricket! lol
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AfterDawn Addict
4 product reviews
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22. August 2008 @ 17:24 |
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Lol I walked past the sign at chelmsford station today that read 'Welcome to chelmsford - home of the essex county cricket club' and thought of you... lmao
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harvrdguy
Senior Member
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22. August 2008 @ 18:01 |
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Poor Boozer, he comes over here where cricket is an insect, and to add insult to injury he gets hit by Sam's electricity tax. Lol
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AfterDawn Addict
15 product reviews
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23. August 2008 @ 08:21 |
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I'm a red-blooded American who likes freedom fries with my apple pie. But I also know that England has changed a lot in the last two centuries, so, eh. Forgive and forget. America has its fair share of bad history.
AMD Phenom II X6 1100T 4GHz(20 x 200) 1.5v 3000NB 2000HT, Corsair Hydro H110 w/ 4 x 140mm 1500RPM fans Push/Pull, Gigabyte GA-990FXA-UD5, 8GB(2 x 4GB) G.Skill RipJaws DDR3-1600 @ 1600MHz CL9 1.55v, Gigabyte GTX760 OC 4GB(1170/1700), Corsair 750HX
Detailed PC Specs: http://my.afterdawn.com/estuansis/blog_entry.cfm/11388
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AfterDawn Addict
2 product reviews
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23. August 2008 @ 12:20 |
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You know what? I'm surprised I'm not banned yet.
And Freedom Fries. I want some of those right about now.
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AfterDawn Addict
4 product reviews
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23. August 2008 @ 17:48 |
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The USA has got to be one of the most patriotic nations on the planet, maybe second only to China and perhaps Russia, yet half its population aren't even indigenous! A real sense of pride there, I admire that.
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AfterDawn Addict
15 product reviews
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24. August 2008 @ 09:21 |
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Well, I'm not going to get into politics here. But yes, we're very patriotic. There are very few nations in the world where you can enjoy freedoms like we do. We're a nation of immigrants who fought tooth and nail for our freedom against overwhelming odds. Our forefathers signed the Declaration of Independence knowing that, if they failed, they would die.
So I guess national pride is important, whether or not other countries agree with our actions. We have our own motivations and that's just the way it is.
AMD Phenom II X6 1100T 4GHz(20 x 200) 1.5v 3000NB 2000HT, Corsair Hydro H110 w/ 4 x 140mm 1500RPM fans Push/Pull, Gigabyte GA-990FXA-UD5, 8GB(2 x 4GB) G.Skill RipJaws DDR3-1600 @ 1600MHz CL9 1.55v, Gigabyte GTX760 OC 4GB(1170/1700), Corsair 750HX
Detailed PC Specs: http://my.afterdawn.com/estuansis/blog_entry.cfm/11388
This message has been edited since posting. Last time this message was edited on 2. November 2008 @ 19:42
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